i use the yongnuo 603 triggers as that is what my assistant has. i get clear banding if used any speed higher than 1/125 on canon 5dII, 60d, 7d as well as my ep-2 and nx-11.

you may not have an issue but i am talking from my experiance with them. btw i use the yn-560II flash all the time and they work quite well, just there triggers are not that good for the price they charge (around $50 AUD) at all the retailers here.